diff --git a/common/defs/bitcoin/decred.json b/common/defs/bitcoin/decred.json
index 3ebed96d6..0822367e1 100644
--- a/common/defs/bitcoin/decred.json
+++ b/common/defs/bitcoin/decred.json
@@ -31,7 +31,7 @@
     "Normal": 10
   },
   "dust_limit": 546,
-  "blocktime_seconds": 600,
+  "blocktime_seconds": 300,
   "uri_prefix": "bitcoin",
   "min_address_length": 35,
   "max_address_length": 35,
diff --git a/common/defs/bitcoin/decred_testnet.json b/common/defs/bitcoin/decred_testnet.json
index c48ee4b55..3d5fc3b4f 100644
--- a/common/defs/bitcoin/decred_testnet.json
+++ b/common/defs/bitcoin/decred_testnet.json
@@ -31,7 +31,7 @@
     "Normal": 10
   },
   "dust_limit": 546,
-  "blocktime_seconds": 600,
+  "blocktime_seconds": 120,
   "uri_prefix": "bitcoin",
   "min_address_length": 35,
   "max_address_length": 35,